Maleic acid diethyl ester
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| General | ||||||||||||||||
| Surname | Maleic acid diethyl ester | |||||||||||||||
| other names |
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| Molecular formula | C 8 H 12 O 4 | |||||||||||||||
| Brief description |
colorless liquid with an aromatic odor |
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| properties | ||||||||||||||||
| Molar mass | 172.18 g mol −1 | |||||||||||||||
| Physical state |
liquid |
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| density |
1.06 g cm −3 |
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| Melting point |
−12 ° C |
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| boiling point |
226 ° C |
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| Vapor pressure |
1.33 hPa (57 ° C) |
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| solubility |
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| Refractive index |
1.438-1.442 |
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| safety instructions | ||||||||||||||||
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C | ||||||||||||||||
Maleic acid diethyl ester is a chemical compound from the group of carboxylic acid esters and isomeric to fumaric acid diethyl ester .
Extraction and presentation
Maleate can be prepared by esterification of maleic acid or maleic anhydride with ethanol are recovered.
use
Diethyl maleate can be used in combination with amine hardeners for the polyaddition of epoxy resins . As an intermediate product, it is used in the production of other chemical compounds (e.g. succinic acid diethyl ester or the pesticide malathion ).
safety instructions
When heated above the flash point (93 ° C), the vapors of diethyl maleate form an explosive mixture with air.
Related links
- Maleic acid dimethyl ester C 6 H 8 O 4
Individual evidence
- ↑ a b c d e f g h Entry on diethyl maleate in the GESTIS substance database of the IFA , accessed on February 14, 2017(JavaScript required) .
- ↑ Data sheet diethyl maleate (PDF) from Merck , accessed on April 9, 2011.
- ↑ Entry on maleic acid diethyl ester at ChemBlink , accessed on February 25, 2011.
- ↑ Patent EP1095089 : Hardener for epoxy resins. Registered on June 26, 1999 , published on March 2, 2003 , applicant: Cognis Germany, inventors: Vincenzo Foglianisi, Thomas Huver, Horst Sulzbach, Hans-Josef Thomas.